Skate-runner-grinding fixture.



PATENTBD NOV. 13', 1905.

C. L. JOY.

SKATE RUNNER GRINDING FIXTURE.

APPLICATION FILED SEPT.18,1905.

3 SHEETS-SEE'ET'I.

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No. 835,535. PATBNTED Nov. `1s, 1906.y

o. L. JOY.

SKATE RUNNER GRNDING FIXTURE. APPLIGATION FILED sB1=T1a,19o5.

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JOY.

PATENTED NOV,l 1s, 1906.

SKATE RUNNER GRINDING FIXTURE,

APPLIOAITION FILED SEPT. 18,1905.

3 SHEETS-SHEET 3.

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l@5y/ATTORNEY UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Nov. 1e, 19o6.

Application led September 18, 1905. Serial No. 279,012.

To a/ZZ whom it may concern:

Be it known that I, CHARLES L. JOY, a-citi- Zen of the United States,and a residenty of New Haven, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inSkate-Runner-Grinding Fixtures, of which the following is aspecification.

My invention relates to fLXtu es or attachments for grinding the sidesof skate-runners and it consists in certain details of construction tobe more particularly set forth in the following specification.

To enable others to understand my invention, reference is had to theaccompanying drawings, in which- Figure 1 is an upper broken plan viewof a grinding-machine, upper plan view of the traveling carriagetherefor, xture attached to the carriage for grinding the sides ofskaterunners, and a broken view of a part of the mechanism for operatingthe carriage. Fig. 2 is a front elevation, looking in the direction ofarrow a ofFig. 1, and broken view of the feed-screw. Fig. 3 is a rearend elevation of the carriage and skate-runner fixture looking in thedirection of arrow b of Fig. 1, broken view of the` carriagesupportingbracket, and sectional view of the feedscrew. Fig. 4 is a front sideelevation of the skate-runner fixture and broken view of the carriagelooking in the direction of arrow c of Fig. 1.

The fixtures for grinding skate-runners, which constitute my presentinvention, are adapted for use in connection with a carriage or otherlight traveling support for the fixtures and a grinding-wheel properlysupported and driven. I have shown, however, in the several views acarriage and form of machine which I am now using for grinding cutlery,and also a portion of the reversing mechanism for the carriage, fullyshown and described in a former application filed May 23, 1905, SerialNo. 261,859, which mechanism, however, forms no part of my presentinvention.

1 represents the traveling carriage, reciprocally mounted on the support2, which support is mounted on the bracket 3, projecting from themachine-bed 4. (Shown in Fig. l.)

5 is a grinding-wheel mounted on the end of the spindle 6, which spindleis journaled in the standards 7 and 8, and 9 is the drivingpulley forthe spindle 6.

12 is the feed-screw for reciprocating the carriage, and its projectingend 12Et carries the necessary reversing-pulleys and clutch mechanism(not shown) for rotating said screw in either direction.

13, Figs. 1, 2, and 3, is the shipping-rod adapted to connect with themechanism (not shown) on .the projecting end of the feedscrew. 14 is theoperating-handle for said rod, whereby the carriage is caused to travelin a forward direction, and when so moving the latch 15 will engage withthe block 16 on rod 13 to lock said rod against end'wise movement.

16a is a trip on the carriage 1, adapted to engage the latch 15 torelease the same, and

thus permit the carriage to be returnedby means of the reversingmechanism (not shown) on the projecting end of the feedscrew.

17 is a block on the rod 13, adapted to be engaged by the trip 16 andbring the carriage to a standstill when it has reached its extremerearward position.

The construction and operation of mechanism for holding theskate-runners while the sides are being ground are as follows: 18 is anupright having the rearward projections 18a resting on the upper surfaceof the carriage and is adjustably secured thereto by means of the screws19. operated slide mounted on said upright. 21, Figs. 1, 3, and 4, is aconvex-shaped iformer 20 is a verticallyadjustably securedv to theinside vertical face of the carriage-support 2 by means of the screws22. 23 is a stud projecting from the slide 2f), and it carries the roll24, adaptedto be kept in constant engagement with said former by meansof the springs 25, interposed between the top of the slide 20 and theunder side of the overhanging fingers 26, carried by the rods 27, whichrods are adjustably secured to the upright 18. 28 is a skate-runnerholder having the journals 29 and 30, supported in the bearings 31 and32, securedto the slide 20. 33 is an adjusting-block carrying the screws34 and 35 to engage threaded holes in support 32, and the ledge 33a,Fig. 4, whereby the skate-runner holder is tilted with respect to thegrinding-wheel and the skate-runner 36. The tread portion of this runnerrests on a narrow ledge 37 of the support 28, while the pins 38 and 39serve to prevent longitudinal movement of the skate-runner while beingground. 40 and 41 are guide-rolls rotatably mounted on the supports 42and 43, which supports are adjustably mounted in IOO IIO

the ends of the studs .4:2a and 43a, projecting from thecarriage-support 2. When, therefore, the skate-runner is properlylocated on its support, as shown at Fig. l, the guideroll 4l will keepthe runner from tilting outward during a portion of the forward travelof the carriage. The forward travel of the carriage in the direction ofarrow b will bring the outer vertical face or side of the skaterunner incontact with the grinding-wheel,

and before the runner has left the guide-roll 41 the forward and groundend of the said runner will have engaged the forward guiderolls 40. Ifthe entire surface of the skaterunner has not been fully ground on theforward travel of the carriage, the grinding is completed on the returnmovement. The forward movement will do the rough grinding, and thereturn movement will linish the runner.

As before mentioned, the former 21 is adjusted for position with respectto the grinding-wheel, and the vertical upright 18 is adjustedlongitudinally with respect to the former and also for the purpose ofgrinding different lengths of skate-runners.

When one side of the skate-runner has been ground, its position on thesupport of holder 28 is reversed to grind the opposite side, or it canbe transferred to a similar machine for this purpose.

It will be understood that while I show rolls 24, 40, and 4l I holdmyself at liberty to employ any other antifriction means of contact oreven a plain stud or pin, if desirable.

I claiml. The combination, with a traveling carriage and agrinding-wheel, of a fixture for grinding the sides of skate-runnerscomprising a slide, a support therefor, said support mounted on thecarriage, a skate-runner holder on said slide, a former, means carriedby the slide to engage with said former, for the purpose set forth.

2. In combination, With a traveling carriage and a grinding-Wheel, of afixture for grinding the sides of skate-runners comprising a slide, asupport therefor, said support mounted on the carriage, a skate-runnerholder on said slide, a former located adj acent to the slide, meanscarried by said slide to engage with the former, guides to maintain theskate-runner in position during the operation of grinding, for thepurpose set forth.

3. The combination, with a traveling carriage and a grinding-wheel, of afixture for grinding the sides of skate-runners comprising a slide, asupport therefor, said support adjustably mounted on the carriage, askaterunner holder on the slide, a former adjustably located on a fixedsupport and in close proximity to said slide, means carried by the slideto engage the former and means for maintaining such engagement, guidesto maintain the skate-runner in position during the operation ofgrinding, for the purpose set forth.

4. The combination, with a traveling carriage and a grinding-wheel, of aholder adapted to support a skate-runner while its sides are beingground, guides located in front of the skate-runner to maintain saidskate-runner in position during the operation of grinding, for thepurpose set forth.

5. The combination, with a traveling carriage and a grinding-wheel, of aslide mounted on the carriage, a skate-runner holder on said slide, aroll carried by said slide, a former located adjacent to said slide tobe engaged by the roll, for the purpose set forth.

Signed at New Haven, in the county of New Haven and State ofConnecticut, this 3d day of August, A. D. 1905.

CHARLES L. JOY.

Witnesses:

GEORGE A. TYLER, CAROLINE STREIT.

